CN207437009U - It is a kind of to integrate the pit shaft fettling installation for rinsing fishing sand - Google Patents
It is a kind of to integrate the pit shaft fettling installation for rinsing fishing sand Download PDFInfo
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- CN207437009U CN207437009U CN201721205696.7U CN201721205696U CN207437009U CN 207437009 U CN207437009 U CN 207437009U CN 201721205696 U CN201721205696 U CN 201721205696U CN 207437009 U CN207437009 U CN 207437009U
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- sliding sleeve
- pitching
- valve
- rramming
- sand
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Abstract
The utility model discloses a kind of pit shaft fettling installations for integrating flushing fishing sand, it can valve assembly in pitching including the sleeve type that sets gradually from top to bottom, pump barrel assembly, rramming formula can valve assembly under pitching, the sleeve type can include sliding sleeve switch component and can valve component in pitching by valve assembly in pitching, the rramming formula can include can valve component and rramming base cone under pitching for valve assembly under pitching, the sliding sleeve switch component includes sliding sleeve housing and the sliding sleeve piston set in sliding sleeve housing, the sliding sleeve piston is fixed on by shear pin on sliding sleeve housing, annular housing is equipped between sliding sleeve inner walls and sliding sleeve piston outer wall, it is connected on sliding sleeve housing equipped with circulation port with annular housing.The utility model, which can reduce to remove, changes pipe flow chart, significantly shortens operation and accounts for the well time, reduces operating cost, while utmostly protects reservoir pollution abatement, and improves sand removal success rate.
Description
Technical field
The utility model is related to the pit shaft sand removal of sand well, washing technology field more particularly to a kind of collection to rinse fishing sand
In the pit shaft fettling installation of one.
Background technology
At present, petroleum works are technical, and the pit shaft sand removal, technology for washing well for sand well mainly have two major classes：It is a kind of
It is hydraulic sand washing (well-flushing), principal mode is the sand washing of this internal full-bore of the oil pipe string of tripping in the wellbore+sawtooth sand washing head
(well-flushing) tubing string returns the positive backwashing manner of liquid including oil pipe feed liquor, casing and casing feed liquor, oil pipe returns the backwash mode of liquid；
Another kind is mechanical sand-picking, i.e. tripping in sand bucket tubing string in the wellbore, and sand column is smashed to pieces by up and down pumping, by pump and
The pressure difference that annular space fluid column is formed deposits sandpipe, most under the rolling action of well liquid by what pit shaft sand setting pumping was deposited in sand bucket
Tubing string is proposed into pit shaft afterwards, the pit shaft sand that fishing obtains is drawn off ground, reaches sand removal purpose.
The main advantage of hydraulic sand washing includes：1. technical maturity, tubing string are simple, the oil pipe string of tripping in full-bore is only needed
Construction.2. displacement range is wide, sand-flushing is efficient.As long as stratum energy is sufficient, flushing can effectively the row of being returned, waterpower be taken
Sand is efficient, cleaning pit shaft is thorough.3. viscosity containing well liquid can be diluted, the mobility of sand-flushing liquid is improved, is conducive to
Flushing fluid takes sand and returns discharge pit shaft.4. for the oil well of high, the easy salt crust of well liquid salinity, the flushing of huge discharge clear water can be effective
Dissolving and the salt particle of reservoir sand consolidation, are conducive to break up the hard sand face for being mixed with crystal salt, sand washing are made to obtain effective drilling depth, is carried
High sand-flushing success rate.
The main drawback of hydraulic sand washing includes：1. negative pressure oil well is more and more, the scope of application is less and less.Now with each
Oil field development is goed deep into, and oil-well strata pressure fall is big, and causing the universal negative pressure water suction of oil well, (i.e. fracturing fluid pours in down a chimney into storage
Layer), reservoir pollution is in turn resulted in, makes well oil output degradation, so the oil well of waterpower sand-flushing can be applicable at present
It is fewer and fewer.2. because of the water suction of oil well universal negative pressure, reservoir is caused to miss and reduces well head and takes sand and return row and lead, both so that well head punching
The reservoir sand amount of wash-off is few, and has aggravated reservoir pollution due to working fluid sweeps along reservoir sand to be missed together into reservoir, further drops
Low crude output.
Corresponding, the main advantage of mechanical sand-picking is：Negative pressure being formed in pump barrel by machine power merely and carrying out pumping contain
The well liquid of reservoir sand does not employ any external working fluid, to reservoir without any pollution effect.It is suitable for almost any negative pressure oil well
Pit shaft sand removal operation, be one of preferable solution that hydraulic sand washing can not solve negative pressure oil well sand washover problem.
And the main drawback of mechanical sand-picking includes：1. pumping drags for sand discharge capacity and deposits sand limited volume, sand removal is less efficient.
Single time the reservoir sand that pumping fishing obtains can only be proposed pit shaft by fishing sand by the limited sandpipe of depositing of fishing sandpipe column bottom, when reservoir sand is more
Repetition is needed to remove fishing sandpipe column and carries out fishing sand.2. well liquid is more sticky, it is poor to take sand drain liquid mobility, big into pump resistance, no
More reservoir sands are deposited in sandpipe beneficial to depositing.3. for the oil well of high, the easy salt crust of well liquid salinity, reservoir sand and crystal salt
Grain consolidation easily forms hard sand face (sand lid) on sand column surface, and mechanical sand-picking up and down reciprocatingly acts on the pure machine on hard sand face
Tool impact force is difficult to smash sand face to pieces sometimes, and fishing sand is made to be difficult to obtain effective drilling depth, final to reduce fishing sand success rate.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of energy in view of the deficiency of the prior art
It realizes that lift pipe string does not change sand washing and rinses the pit shaft fettling installation for dragging for sand for integrating for fishing sand operation.
Technical solution is used by the utility model：It is a kind of to integrate the pit shaft fettling installation for rinsing fishing sand, spy
Sign is：Including the sleeve type that sets gradually from top to bottom can in pitching valve assembly, pump barrel assembly, rramming formula can pitching descend to the mortal world
Your assembly, the sleeve type can include sliding sleeve switch component and can valve component, the rramming in pitching by valve assembly in pitching
Formula valve assembly can include that valve component and rramming base cone, the sliding sleeve switch component sliding sleeve housing can be included under pitching under pitching
With the sliding sleeve piston set in sliding sleeve housing, the sliding sleeve piston is fixed on by shear pin on sliding sleeve housing, in sliding sleeve
Annular housing is equipped between inner walls and sliding sleeve piston outer wall, is connected on sliding sleeve housing equipped with circulation port with annular housing
It is logical, it is described can valve component and can valve component be all-pass gauge structure in the initial state under pitching in pitching.
By above-mentioned technical proposal, the sliding sleeve piston is that longitudinal section is T-shaped piston, the top and bottom of the sliding sleeve piston
Configured with sliding sleeve housing seal.
By above-mentioned technical proposal, the circulation port set on sliding sleeve housing axially offsets setting.
By above-mentioned technical proposal, it is described can in pitching valve component with can under pitching valve component structure it is identical, it is described
Can in pitching the pitching latus rectum of valve component Configuration be more than can under pitching valve component Configuration pitching latus rectum, both including all
That housing is equipped with turnover panel block valve bonnet assembly and valve seat successively from top to bottom in valve housing, total in turnover panel block valve bonnet
Into between valve seat be equipped with valve chamber.
By above-mentioned technical proposal, the turnover panel block valve bonnet assembly includes block seat ring, is equipped at least on block seat ring
Two grooves set downward are equipped with block in each groove, and the block is hinged on by torsional spring in groove, thereon end
By block seat ring /V, make it that can only rotate downward.
By above-mentioned technical proposal, the pump barrel assembly include pump barrel, the plunger pull rod set in pump barrel and with plunger draw
The plunger that bar lower end is connected is equipped with gap, between the upper end of the pump barrel and plunger pull rod between the plunger pull rod and pump barrel
It is connected by pump barrel box cupling, is connected on pump barrel equipped with multiple balance holes with gap.
By above-mentioned technical proposal, the anti-sand launder of plunger is equipped on plunger outer wall.
By above-mentioned technical proposal, the rramming base cone includes rramming base cone body, and the rramming base cone body is cylindrical shape
Hollow structure, upper and lower end are hatch frame, multiple effluent holes are equipped on rramming base cone body, in rramming base cone body
Bottom be equipped with rramming pointed cone, the rramming pointed cone by two pieces in " cross " intersecting vertical set welding block form, two
Rramming base cone body bottom portion through hole is separated into 4 fan-shaped pylones by welding block.
Having the beneficial effect that acquired by the utility model：
1st, the utility model integrates both full-bore sand-flushing pipe column and mechanical sand-picking tubing string function, need not remove more
Tubing string is changed, and only needs that underground full-bore sand-flushing pipe column can be converted into mechanical sand-picking tubing string by certain well head operation,
And then realize that lift pipe string does not change sand washing as fishing sand operation, can not only overcome both hydraulic sand washing and mechanical sand-picking are respective to lack
Point, and can reduce to remove and change pipe flow chart, significantly shorten operation and account for the well time, reduce operating cost, while maximum journey
Degree protection reservoir pollution abatement, and improve sand removal success rate.
2nd, in the utility model, early period carries out sand washing operation on a small quantity, be conducive to dilute well liquid viscosity, improve well liquid take sand into
Mobility is pumped, the salt particle with reservoir sand consolidation more can be effectively dissolved, be conducive to break up the hard sand face for being mixed with crystal salt, make
The follow-up fishing sand that changes obtains effective drilling depth, final to improve mechanical sand-picking success rate.
Description of the drawings
Fig. 1 is the structure chart of the utility model.
Fig. 2 be in the utility model can in pitching valve assembly structure chart.
Fig. 3 be in the utility model can in pitching valve assembly three-dimensional structure diagram.
Fig. 4 is the dimensional structure diagram of turnover panel block valve bonnet assembly in the utility model.
Fig. 5 is the structure chart of pump barrel assembly in the utility model.
Fig. 6 be in the utility model rramming formula can under pitching valve assembly structure chart.
Fig. 7 is the bottom view of rramming pointed cone in the utility model.
Fig. 8 is sleeve type can valve assembly-sliding sleeve be opened in pitching, valve ball is in bottom dead centre structure chart.
Fig. 9 is sleeve type can valve assembly-sliding sleeve be opened in pitching, valve ball is in top dead-centre structure chart.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, present embodiments provide a kind of pit shaft fettling installation for integrating and rinsing fishing sand, including from upper
Under the sleeve type that sets gradually can valve assembly 1, pump barrel assembly 2, rramming formula can valve assembly 3, the cunnings under pitching in pitching
Shell type can in pitching valve assembly 1 include sliding sleeve switch component and can valve component in pitching, the rramming formula can pitching descend to the mortal world
Your assembly include can valve component and rramming base cone under pitching, it is described valve component and valve component can to exist under pitching in pitching
It is all-pass gauge structure under original state.
As shown in Figure 2,3, the sliding sleeve switch component includes sliding sleeve housing 1-2 and the sliding sleeve set in sliding sleeve housing is lived
1-5 is filled in, the upper end of sliding sleeve housing 1-2 is connected by upper box cupling 1-1 with pumping upper oil pipe 4-1.The sliding sleeve piston 1-5 is longitudinal section
For T-shaped piston, the top and bottom of the sliding sleeve piston 1-5 pass through upper sealing ring 1-3 and lower seal 1-6 and sliding sleeve shell respectively
Body 1-2 seal arrangements.The sliding sleeve piston 1-5 is fixed on by shear pin 1-4 on sliding sleeve housing 1-2, in sliding sleeve housing 1-2
Annular housing is equipped between inner wall and sliding sleeve piston 1-5 outer walls, circulation port (1-2-1,1-2-2) is equipped on sliding sleeve housing 1-2
It is connected with annular housing, in the present embodiment, 4 circulation ports is equipped in circumferencial direction, 4 circulation ports axially offset setting, with
Ensure the processing intensity of sliding sleeve housing 1-2.
As shown in Figure 2,3, it is described can in pitching valve component with can under pitching valve component structure it is identical, it is described to throw
On ball the pitching latus rectum of valve component Configuration be more than can under pitching valve component Configuration pitching latus rectum, can valve component in pitching
Including upper valve housing 1-7, flap block valve bonnet assembly and upper valve are equipped with successively from top to bottom in upper valve housing 1-7
Seat 1-13, is equipped with valve chamber between flap block valve bonnet assembly and upper valve seat.
As shown in figure 4, the flap block valve bonnet assembly includes block seat ring 1-11, it is equipped on block seat ring 1-11
At least two grooves set downward, be equipped in each groove upper stopper 1-10, the upper stopper 1-10 by torsional spring 1-8 and
Upper stopper pin 1-9 is hinged in groove, and end makes it that can only rotate downward by groove ends /V thereon, wherein, upper gear
Block pin 1-9 is weldingly fixed on block seat ring 1-11.
As shown in figure 5, plunger pull rod 2-1 and and column that the pump barrel assembly 2 includes pump barrel 2-3, set in pump barrel 2-3
The plunger 2-4 that plug pull rod 2-1 lower ends are connected, is equipped with the anti-sand launder 2-4-1 of plunger on plunger outer wall.In pump barrel 2-3 inner walls and column
Gap is equipped between plug pull rod 2-1,2 balance hole 2-3-1 are equipped on pump barrel 2-3, the upper end of pump barrel 2-3 is connected with pump barrel and connects
It binds round 2-1 to configure with plunger tie-rod sealing, lower end is connected by pumping lower oil pipe 4-2 with lower contact 3-1.
As shown in fig. 6, can include lower valve housing 3-2 by valve component under pitching, the upper end of lower valve housing 3-2 connects under
Head 3-1 is connected.It is equipped with lower turnover panel block valve bonnet assembly and lower valve seat 3-8 successively from top to bottom in lower valve housing 3-2,
Valve chamber is equipped between lower turnover panel block valve bonnet assembly and lower valve seat.Lower turnover panel block valve bonnet assembly equally includes lower stopper seat
The circle 3-6 and lower block 3-5 configured with it, the structure of the two configuration is identical with the structure of flap block valve bonnet assembly, herein
It does not repeat one by one.
As shown in Figure 6,7, it is cylinder that the rramming base cone, which includes rramming base cone body 3-9, the rramming base cone body 3-9,
Shape hollow structure, upper and lower end are hatch frame, and 4 circumference uniform distributions and axially staggered are equipped on rramming base cone body 3-9
The effluent hole (3-9-1,3-9-2) of setting is equipped with rramming pointed cone 3-10, the rramming point in the bottom of rramming base cone body 3-9
The welding block that cone 3-10 is set by two pieces in " cross " intersecting vertical forms, and two welding blocks are by rramming base cone body 3-9 bottoms
Portion's through hole is separated into 4 fan-shaped pylones.
The operating method of the utility model is：
When the present apparatus is gone into the well, closed state is also in tubing string without any valve ball, sliding sleeve switch component for the first step,
I.e. entire tubing string side does not have direct intercommunicating pore with pit shaft, is approximate full-bore hollow structure, only rramming inside tubing string
Base cone bottom is hatch frame, realizes the connection of the pit shaft fettling installation and pit shaft.It can be by common waterpower in this way, starting operation
Sand washing mode carries out, and early period carries out prioritizing selection positive backwashing manner during hydraulic sand washing, to ensure the reliable of tubing string inner components
Property and service life, but can also take backwash mode.
Second step when finding negative pressure without the row of returning, stops sand washing operation, puts into smaller lower valve ball 3- first by well head
7, due to lower valve ball 3-7 diameter designs be less than following spare and accessory parts internal diameter, including sliding sleeve piston 1-5, upper valve seat 1-13,
Plunger pull rod 2-1, plunger 2-4, and the internal diameter more than lower valve seat 3-8.Meanwhile by upper stopper seat ring 1-11, upper stopper 1-10,
The turnover panel block valve bonnet assembly of upper stopper pin 1-9 and upper torsional spring 1-8 compositions, is designed as being subject to lower valve as upper stopper 1-10
When the impact force of ball 3-7 whereabouts and dead weight, upper stopper 1-10 is downwardly turned over naturally, and open walk is allowed to enable lower valve ball 3-7 suitable
Profit is slipped by the way that then upper stopper 1-10 is flipped up setting back again under the elastic force effect of upper torsional spring 1-8, because of torsional spring bullet
Power design is smaller, and upper stopper 1-10 has constant weight in addition, and the nature of upper stopper 1-10 slopes slightly downward centainly for level
Angle.Because the nature of upper stopper 1-10 is subject to the position limiting structure of upper stopper seat ring 1-11 to set, upper stopper 1-10 is upward only
It can overturn to horizontality.And can valve assembly is with can be in pitching compared with valve assembly under pitching, working principle of design and structure
Form all same is that the former specification compares the latter's smaller.So lower valve ball 3-7 can be smoothly by well mouth oil pipe
It slips into and is seated on lower valve seat 3-8, while lower block 3-5 tops can not be jumped back out to by lower block 3-5 /Vs upwards again.
3rd step after taking a seat the time by the lower valve ball 3-8 whereabouts estimated, then is put into larger upper valve ball by well head
1-12, since upper valve ball 1-12 diameter designs are the internal diameter less than sliding sleeve piston 1-5, and more than upper valve seat 1-13 internal diameters.
Equally, the falling impacts power of top valve ball 1-12 and dead weight can smoothly cross upper stopper 1-10 and be seated at valve seat 1-13
On.Equally, upper valve ball 1-12 can not jump back out to upper stopper 1-10 tops upwards again by upper stopper 1-10 /Vs.When above descending to the mortal world
Your ball 1-12, which all takes a seat, changes and is provided with the function of ball-and-seat.Then well head in oil pipe by applying relatively low hydraulic pressure
Power, occur building the pressure situation when can judge the combination sealing situation of valve ball and valve seat.
4th step, well head in oil pipe by applying higher hydraulic coupling, due to being acted in oil pipe on sliding sleeve piston 1-5
The hydraulic coupling of plane can be acted on by circulation port (1-2-1,1-2-2) under sliding sleeve piston 1-5 far above mineshaft annulus fluid column
The hydraulic coupling of plane, it is final so that net effort downward sliding sleeve piston 1-5 can exceed 2 pieces of shear pin 1-4 of circumference uniform distribution
Total shear strength exposes 4 circulation ports (1-2-1,1-2-2) so as to cut shear pin 1-4 slidings downwards, and realization can pitching
Upper valve component top tubing string is connected by the circulation port (1-2-1,1-2-2) of side with pit shaft, as shown in Figure 8,9.So far, originally
The flushing fishing sand integral type pit shaft fettling installation of utility model has just been completely converted into mechanical sand-picking tubing string.
5th step carries out fishing sand operation according to tradition machinery fishing sand method operation.
In addition, it should be noted that integrating " rinsing fishing sand " in the utility model refers to collection " sand washing, well-flushing, fishing sand
Technique is in one ".
The utility model is on the basis of traditional sand bailing process, collection full-bore sand-flushing pipe column and mechanical sand-picking tubing string two
Person's function is in one, the shortcomings that both hydraulic sand washing and mechanical sand-picking can not only be overcome respective, and can reduce to remove and change
Pipe flow chart significantly shortens operation and accounts for the well time, reduces operating cost, and improves sand removal success rate.
Claims (8)
1. a kind of integrate the pit shaft fettling installation for rinsing fishing sand, it is characterised in that：Including the cunning set gradually from top to bottom
Shell type can in pitching valve assembly, pump barrel assembly, rramming formula can valve assembly under pitching, the sleeve type can in pitching valve it is total
Into including sliding sleeve switch component and can valve component in pitching, the rramming formula can under pitching valve assembly include can pitching descend to the mortal world
That component and rramming base cone, the sliding sleeve switch component include sliding sleeve housing and the sliding sleeve piston set in sliding sleeve housing, institute
It states sliding sleeve piston to be fixed on sliding sleeve housing by shear pin, ring is equipped between sliding sleeve inner walls and sliding sleeve piston outer wall
Shape cavity is connected on sliding sleeve housing equipped with circulation port with annular housing, it is described can valve component and can be under pitching in pitching
Valve component is all-pass gauge structure in the initial state.
2. pit shaft fettling installation according to claim 1, it is characterised in that：The sliding sleeve piston is that longitudinal section is T-shaped work
Plug, the top and bottom of the sliding sleeve piston are configured with sliding sleeve housing seal.
3. pit shaft fettling installation according to claim 2, it is characterised in that：The circulation port set on sliding sleeve housing is axial
Stagger setting.
4. pit shaft fettling installation according to claim 1 or 2, it is characterised in that：It is described can valve component and can in pitching
The structure of valve component is identical under pitching, it is described can be more than can valve group under pitching for the pitching latus rectum of valve component Configuration in pitching
The pitching latus rectum of part configuration both including valve housing, is equipped with turnover panel block valve bonnet successively from top to bottom in valve housing
Assembly and valve seat are equipped with valve chamber between turnover panel block valve bonnet assembly and valve seat.
5. pit shaft fettling installation according to claim 4, it is characterised in that：The turnover panel block valve bonnet assembly includes block
Seat ring is equipped at least two grooves set downward on block seat ring, and block is equipped in each groove, and the block passes through
Torsional spring is hinged in groove, and end makes it that can only rotate downward by block seat ring /V thereon.
6. pit shaft fettling installation according to claim 1 or 2, it is characterised in that：The pump barrel assembly includes pump barrel, is pumping
The plunger pull rod set in cylinder and the plunger being connected with plunger pull rod lower end, are equipped with gap between the plunger pull rod and pump barrel,
It is connected by pump barrel box cupling between the upper end of the pump barrel and plunger pull rod, is connected on pump barrel equipped with multiple balance holes with gap
It is logical.
7. pit shaft fettling installation according to claim 6, it is characterised in that：The anti-sand launder of plunger is equipped on plunger outer wall.
8. pit shaft fettling installation according to claim 1 or 2, it is characterised in that：The rramming base cone includes rramming base cone
Body, the rramming base cone body are cylindrical hollow structure, and upper and lower end is hatch frame, on rramming base cone body
Equipped with multiple effluent holes, rramming pointed cone is equipped in the bottom of rramming base cone body, the rramming pointed cone is in " cross by two pieces
Rramming base cone body bottom portion through hole is separated into 4 fan-shaped pylones by the welding block composition that shape " intersecting vertical is set, two welding blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721205696.7U CN207437009U (en) | 2017-09-20 | 2017-09-20 | It is a kind of to integrate the pit shaft fettling installation for rinsing fishing sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721205696.7U CN207437009U (en) | 2017-09-20 | 2017-09-20 | It is a kind of to integrate the pit shaft fettling installation for rinsing fishing sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437009U true CN207437009U (en) | 2018-06-01 |
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ID=62301738
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721205696.7U Active CN207437009U (en) | 2017-09-20 | 2017-09-20 | It is a kind of to integrate the pit shaft fettling installation for rinsing fishing sand |
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| Country | Link |
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| CN (1) | CN207437009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489402A (en) * | 2017-09-20 | 2017-12-19 | 中国石化江汉油田分公司江汉采油厂 | It is a kind of to integrate the pit shaft fettling installation and its operating method for rinsing and dragging for sand |
-
2017
- 2017-09-20 CN CN201721205696.7U patent/CN207437009U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489402A (en) * | 2017-09-20 | 2017-12-19 | 中国石化江汉油田分公司江汉采油厂 | It is a kind of to integrate the pit shaft fettling installation and its operating method for rinsing and dragging for sand |
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Effective date of registration: 20191230 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Jianghan Oil Production Plant of SINOPEC Jianghan Oilfield Company Patentee after: China Petrochemical Co., Ltd. Address before: 433123 No.1, Xiangyang development road, Qianjiang City, Hubei Province Patentee before: Jianghan Oil Production Plant of SINOPEC Jianghan Oilfield Company |